* c:\esim\esim\src\subcircuitlibrary\logic_adder\logic_adder.cir * u2 a b net-_u2-pad3_ d_and * u4 net-_u3-pad3_ cin net-_u4-pad3_ d_and * u3 a b net-_u3-pad3_ d_xor * u5 net-_u3-pad3_ cin sum d_xor * u6 net-_u2-pad3_ net-_u4-pad3_ carry d_or * u1 a b cin sum carry port a1 [a b ] net-_u2-pad3_ u2 a2 [net-_u3-pad3_ cin ] net-_u4-pad3_ u4 a3 [a b ] net-_u3-pad3_ u3 a4 [net-_u3-pad3_ cin ] sum u5 a5 [net-_u2-pad3_ net-_u4-pad3_ ] carry u6 * Schematic Name: d_and, NgSpice Name: d_and .model u2 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_and, NgSpice Name: d_and .model u4 d_and(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_xor, NgSpice Name: d_xor .model u3 d_xor(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_xor, NgSpice Name: d_xor .model u5 d_xor(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) * Schematic Name: d_or, NgSpice Name: d_or .model u6 d_or(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 ) .tran 10e-03 100e-03 0e-00 * Control Statements .control run print allv > plot_data_v.txt print alli > plot_data_i.txt .endc .end